[CLSA-2026:1793091743] Fix CVE(s): CVE-2026-115557
Type:
security
Severity:
Critical
Release date:
2026-10-27 09:02:33 UTC
Description:
* SECURITY UPDATE: TLS chains using a compromised eMudhra intermediate CA key were accepted - debian/patches/CVE-2026-115557.patch: add Modules/_ssl/distrusted_spki.h, a denylist of the SHA-256 digests of the eight compromised eMudhra intermediate SubjectPublicKeyInfo structures, and enforce it from a new _ssl verify callback installed on every _ssl._SSLContext: a certificate whose SPKI digest is on the list fails verification with X509_V_ERR_CERT_REJECTED. Matching the public key rather than a certificate fingerprint also covers the cross-signed certificates that reuse one of the keys. Backport of upstream gh-160040 / PR 160042, which shipped only in 3.11.18, 3.12.16, 3.13.18, 3.14.10 and 3.15.2; 3.10 is EOL upstream and got no release with it. 3.10.22 keeps the older "keep current verify cb" shape in _set_verify_mode(), which is replaced by upstream's SSL_CTX_set_verify(self->ctx, mode, _ssl_verify_callback), and lists the _ssl dependencies in setup.py instead of MODULE__SSL_DEPS, so the new header is added there - CVE-2026-115557
CVEs fixed:
Updated packages:
  • alt-python310_3.10.22-3_amd64.deb
    sha:67f4a5c48ef21de1ec8f6c9773cc9e87571a5d7f
  • alt-python310-debug_3.10.22-3_amd64.deb
    sha:52a345760a2a2b6446f9f3fa714e70ab4a2ef0a0
  • alt-python310-devel_3.10.22-3_amd64.deb
    sha:bb3f5efa0f9f3831eebad5b9dec38be38f5abb3f
  • alt-python310-idle_3.10.22-3_amd64.deb
    sha:89e1724041e5332acb98cc965c66712e41a9ace3
  • alt-python310-libs_3.10.22-3_amd64.deb
    sha:80885003f5e53eccbca71a1ad46f6d61f74469c8
  • alt-python310-test_3.10.22-3_amd64.deb
    sha:622bf13b8e887458502cb499ba5efbae5105bc72
  • alt-python310-tkinter_3.10.22-3_amd64.deb
    sha:5a42ed10bdce8f679c276c26d46115ccb9c73dd2
Notes:
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